"""
Case Type   : 资源池化
Case Name   : 主节点注入cms故障，缩容备机
Create At   : 2024.10
Owner       : chen
Description :
    1.主节点注入cms故障
    cd $GAUSSHOME/bin
    mv cm_server cm_server1
    kill -9 pid(cm_server)
    2.缩容备二
    gs_dropnode -U USER -G GROUP -h hostlist
    3.恢复故障
    cd $GAUSSHOME/bin
    mv cm_server1 cm_server
    cm_ctl start -n 3
Expect      :
    1.成功
    2.成功
    3.恢复成功
"""

import os
import time
import unittest
from testcase.utils.Logger import Logger
from testcase.utils.CommonSH import CommonSH
from testcase.utils.Constant import Constant
from testcase.utils.Common import Common
from yat.test import Node
from yat.test import macro

class SharedStorage(unittest.TestCase):
    def setUp(self):
        self.log = Logger()
        self.log.info(f'-----{os.path.basename(__file__)} start-----')
        self.pri_comsh = CommonSH('PrimaryDbUser')
        self.constant = Constant()
        self.com = Common()
        self.pri_node = Node('PrimaryDbUser')
        self.pri_root_node = Node('PrimaryRoot')
        self.sta2_node = Node('Standby2DbUser')
        self.db_host = self.sta2_node.db_host
        self.s_user = self.pri_node.ssh_user

    def test_shared_storage(self):
        text = f'''-----step1: 主节点注入cms故障 expect: 成功-----'''
        self.log.info(text)
        pid = self.com.get_pid(self.pri_node, 'bin/cm_server')
        cmd = f'''source {macro.DB_ENV_PATH}; \
            mv $GAUSSHOME/bin/cm_server $GAUSSHOME/bin/cm_server_bak'''
        self.log.info(cmd)
        res = self.pri_node.sh(cmd).result()
        self.log.info(res)
        cmd = f'''kill -9 {pid}'''
        self.log.info(cmd)
        res = self.pri_node.sh(cmd).result()
        self.log.info(res)
        time.sleep(5)

        text = f'''-----step2: 缩容备二 expect: 成功-----'''
        self.log.info(text)
        cmd = f'''source {macro.DB_ENV_PATH};
        expect <<EOF
        set timeout 600
        spawn gs_dropnode -U {self.s_user} -G {self.s_user} \
            -h {self.db_host}
        expect "*drop the target node (yes/no)?*"
        send "yes\\n"
        expect eof\n''' + '''EOF'''
        self.log.info(cmd)
        res = self.pri_node.sh(cmd).result()
        self.log.info(res)
        self.assertIn('Success to drop the target nodes', res)
        cmd = f'source {macro.DB_ENV_PATH}; gs_uninstall --delete-data'
        self.log.info(cmd)
        res = self.sta2_node.sh(cmd).result()
        self.log.info(res)
        self.assertIn('Uninstallation succeeded', res)

    def tearDown(self):
        text = f'''-----step3: 恢复故障 expect: 成功-----'''
        self.log.info(text)
        cmd = f'''source {macro.DB_ENV_PATH}; \
            mv $GAUSSHOME/bin/cm_server_bak $GAUSSHOME/bin/cm_server'''
        self.log.info(cmd)
        res = self.pri_node.sh(cmd).result()
        self.log.info(res)
        res = self.pri_comsh.exec_cm_ctl('start -n 1')
        self.log.info(res)
        self.assertIn(self.constant.cm_start_node_success_msg, res)
        xml_path = macro.DB_XML_PATH
        cmd = f'''gs_expansion -U {self.s_user} -G \
            {self.s_user} -X {xml_path} -h {self.db_host}'''
        execute_cmd = f'''source {macro.DB_ENV_PATH};
        expect <<EOF
        set timeout 300
        spawn {cmd}
        expect "*assword*:"
        send "{self.pri_root_node.ssh_password}\\n"
        expect "*assword*:"
        send "{self.pri_root_node.ssh_password}\\n"
        expect "*lease repeat for database*:"
        send "{macro.GAUSSDB_INIT_USER_PASSWD}\\n"
        expect eof\n''' + '''EOF'''
        self.log.info(execute_cmd)
        res = self.pri_root_node.sh(execute_cmd).result()
        self.log.info(res)
        self.assertIn(f'{self.db_host}:\tSuccess', res)
        self.log.info(f'-----{os.path.basename(__file__)} end-----')